Frog



W. PERDUE June 14, 1932.

FROG

Filed Jan. 23, 1931 avwento'c Win/liar Teraue 33% abtomuao Patented June 14, 1932 UNETEO STATES PATENT @FFIEOE WHI'ETIER PEBD'UE, OF CHICAGO, ILLINOIS, ASSIGNOR TO B-AMAPO AJAX CORPORATION, OF NEW YORK, N. Y., A CORPORATION OF NEW YORK FROG Application filed January 23, 1931.

The invention relates to railway track equipment, and more particularly to railway frogs.

According to one form which the invention may assume, a frog is made up of wing rails and point rails of standard rail material and risers are welded to the tops of the wing rails opposite the frog point to relieve the frog point of the weight of the car wheels. The risers may have sloping ends to gradually raise and lower the car wheels as they pass over the frog. The material of the risers may be harder and more durable than the material of the rails to increase the life of the frog. These risers protect the frog points from the continuous pounding of the wheels by lifting the wheel tread off the frog points.

The invention also consists in certain new and original features of construction and combinations of parts hereinafter set forth and claimed.

Although the novel features which are believed to be characteristic of this invention will be particularly pointed out in the claims appended hereto, the invention itself, as to its objects and advantages, and the manner in which it may be carried out, may be better understood by referring to the following description taken in connection with the accompanying drawing forming a part thereof, in which Fig. 1 is plan view of a frog according to the invention;

Fig. 2 is a diagram illustrating the shape of the risers; and

Fig. 3 is a section on the line 33 of Fig. 1.

Like reference characters denote like parts in the several figures of the drawing.

In the following description and in the claims, various details will be identified by specific names for convenience, but they are intended to be as generic in their application as the art will permit.

In the drawing accompanying and forming part of this specification, certain specific disclosure of the invention is made for purposes of explanation, but it will be understood that the details may be modified in Serial No. 510,621.

Various respects without departure from the broad aspect of the invention.

Referring now to the drawing, the wing rails 10 and 11 are bent as indicated forming running parts 12 and 13 on which the wheels run, and guiding parts 14 and 15 which guide the wheel flanges safely through the frog.

The point rails are denoted by and 21, 21 being the longer rail and being pointed at its end, as illustrated. The shorter rail is denoted by 20 and its end is tapered to fit the side of the longer rail 21, as indicated. To hold the point rails and wing rails in proper relation, filler blocks, indicated by 30, 31 and 32, are provided, these filler blocks preferably fitting the rail sections as indicated in Fig. 1 and Fig. 3. A plurality of bolts, indicated by 33, are provided to firmly clamp the several rails and filler blocks together to form a complete structure.

The several rails making up the frog are preferably standard rolled T rails having a head, web and flange, as well known in the art. Furthermore, it will be understood that the frog is suitably supported upon tie plates (not shown) and railroad ties (not shown) and suitably secured thereto.

Secured to the tops of the heads of the wing rails 10 and 11 are risers 43 and 4 1. These risers are preferably welded to the tops of the standard rails and are preferably of a harder material than the material of the rail to better stand up in use.

Each riser comprises a level part indicated by 46 which extends a short distance on either side of the tip end of the frog point 22, a gradually sloping part, indicated by which extends substantially to the bend in the wing rail and a less gradually sloping part 47, as shown.

As the wheels (indicated in dot-and-dash lines) pass along the tracks, the wheel tread rides up the inclined surfaces of the risers, raising the tread off the point- 22, protecting it from the battering action of the wheels. The wheel tread is slightly conical in a new wheel, as indicated, but becomes more cylindrical as the wheel wears down. It will there fore be seen that with worn wheels the risers give more protection to the frog point than with new wheels.

It will be seen that the frog points which are necessarily thin are protected by the risers above described. The thin frog points are not ample to withstand the heavy load of the wheels and continual pounding for any considerable length of time and otherwise would soon become battered and worn down, shortoning the life of the frog. By the use of the invention the load on the frog point is relieved and the life of the frog is greatly increased.

Vhile certain novel features of the invention have been disclosed and are pointed out in the annexed claims, it will be understood that various omissions, substitutions and changes may be made by those skilled in the art without departing from the spirit of the invention.

hat is claimed is:

1. In a rail frog, a. pair of wing rails, point rails therebetween, means for holding said point rails and wing rails in assembled relation, risers on said wing rails opposite the frog point to relieve the frog point of the weight of the car wheels, said wing rails and point rails being of standard rail material, said risers being welded to the top surfaces of the wing rails.

2. In a track structure, intersecting rails of standard rail material having head, web and flange, and additional metal welded to the top wearing surface of the head of one of said rails to raise the car wheels to protect another of said rails.

3. In a rail frog, a pair of wing rails, point rails therebetween, means for holding said point rails and wing rails in assembled relation and risers of welded metal on the top wearing surfaces of said wing rails opposite the frog point to relieve the frog point of the weight of the car wheels, said rails all being made from rails of standard section, said risers being harder than said rails.

4. In a rail frog, a pair of wing rails, point rails therebetween, means for holding said point rails and wing rails in assembled relation, and risers on the top wearing surfaces of said wing rails opposite the frog point to relieve the frog point of the weight of the car wheels.

5. In a rail frog, wing rails, each comprising a. running part and a guide part connected at a bend in the rail, point rails be tween said ring rails, said wing rails and point rails being of standard T rail material, and wheel risers of welded material on the tops of the heads of said wing rails, each having a level part opposite the end of the frog point and sloping parts at the ends of said level part.

6. In a rail frog, wing rails, each comprising a running part and a guide part connected at a bend in the rail, point rails between said wing rails and comprising a longer running rail to form the end of the frog point and a shorter running rail tapered to fit against the side of said longer rail, said wing rails and point rails being of standard rail material, filler blocks between said point rails, guide parts and running parts of said wing rails, and wheel risers of welded material on the tops of the heads of each of said wing rails, each having a level part opposite the end of the frog point and extending a substantial distance on. both sides of the frog point, and a gradually down-sloping part extending to substantially said bend and a less gradual down-sloping part on the other side of said level part.

7. In a track structure, a plurality of meeting rails, one of said rails having a portion ending in a point, another of said rails being made oi standard rail material and additional metal secured to the top wearing surface of said last mentioned rail opposite said point to raise the car wheels to relieve said point.

8. In a track structure, a plurality of meeting rails, and additional metal welded to one of; sai d rails to deflect the car wheels to protect another of said rails.

9. In a track structure, a plurality of meeting rails, and additional material added to the top wearing surface of one of said rails to engage and raise the treads of the car wheels to protect another of said rails.

In testimony whereof I have hereunto set my hand.

VVHIT'IIER PERDUE. 

